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Assessing the survival and fit of crowns provided for premolar and molar teeth which have undergone root canal treatment

Survival and clinical performance of indirect restorations provided for root canal treated teeth

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ISRCTN
Registry ID
ISRCTN69046497
Enrollment
80
Registered
2024-11-27
Start date
2024-10-14
Completion date
Unknown
Last updated
2026-01-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Posterior root canal treated teeth requiring cuspal coverage restorations Oral Health

Interventions

Patients are being randomised, via sealed envelope and a block randomisation method to either the 3-D printed group or the LiDi group. Teeth are then prepared to receive the cuspal coverage restoratio

Sponsors

University of Liverpool
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 110 Years

Inclusion criteria

Inclusion criteria: 1. 18+ year old patient requiring cuspal coverage of an indirect restoration 2. Root canal treated premolar/molar 3. Tooth requires tooth coloured restoration 4. Tooth is restorable 5. Tooth would not require metal-based restoration

Exclusion criteria

Exclusion criteria: Anterior (Incisor or Canine Tooth)

Design outcomes

Primary

MeasureTime frame
‘Survival/Non-Survival of the Restoration’ assessed chairside by 2 examiners at visit 3 (1 year review appt)

Secondary

MeasureTime frame
1. Colour match is measured using USPHS criteria at baseline and 1 year 2. Marginal discolouration is measured using USPHS criteria at baseline and 1 year 3. Secondary caries is measured using USPHS criteria at baseline and 1 year 4. Anatomical form is measured using USPHS criteria at baseline and 1 year 5. Marginal adaptation is measured using USPHS criteria at baseline and 1 year 6. Surface texture is measured using USPHS criteria at baseline and 1 year 7. Fracture is measured using USPHS criteria at baseline and 1 year

Countries

England, United Kingdom

Contacts

Public ContactFadi Jarad
f.jarad@liverpool.ac.uk+44 151 706 2000

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026